Background: I have a 15" PowerBook (bought this aug.) and a Linksys WRT54G router hooked up to my comcast modem. The 'book is running 10.4.2 and has the latest airport software. The PowerBook and router are probably only about 20-30 feet away as the crow flies, however there are a few walls and a floor in between. Usually my connection is okay; i can get 2 bars on my airport icon most of the time. However, it seems to drop out a few times a day. The fix I have found is to run downstairs and unplug/replug router and modem, and it will connect again. Is there a more permantent fix without spending money. What would be the best option if I did have to buy something (repeater, booster, high-gain antenna, etc.) How about a cantenna?